you sure the packages are "salt" hahaha. the general rule is 1/2 cup per 5 gallons will raise the SPG .002 i had instant ocean and after i ran out i got and still currently using Tropic Marin and the measurements are the same
i have a refractometer, guys. im not that low. it'd be easier to know the dosage then to just add salt and measure w/the refractometer until i get it right. thanks for those that answered my question.